Issue 64

B. Gudadappanavar et alii, Frattura ed Integrità Strutturale, 64 (2023) 240-249; DOI: 10.3221/IGF-ESIS.64.16

wrapping with external fiber jackets leads to resisting the sudden catastrophic failure under the shear mode of loading which is shown in Figs. 8b and 8c.

Figure 7: Variation of Shear Strength values in concrete (a) Shear strength versus HDPE proportion (b) shear Strength of fiber wrapped versus HDPE proportion.

Figure 8: Cracked concrete samples under Shear Test (a) Plain Concrete (b) BFM wrapped and (c) GFM wrapped samples.

Impact resistance The effect of adding HDPE in concrete on impact resistance is shown in Figs. 9a and 9b. From Figs. 9a and 9b, it was observed that 0.5%, 1%, and 1.5 % HDPE fiber-reinforced concrete gains an impact strength of more than 33.33%, 61.11%, and 77.77% for the first crack on the specimen and 31.81%,54.54% and 68.18% for the final failure respectively when compared to plain concrete. The energy-absorbing of HDPE-filled concrete is higher and leads to take a greater number of

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